Whenever one or more creatures you control deal combat damage to a player, create a colorless Treasure artifact token with "{T}, Sacrifice this artifact: Add one mana of any color to your mana pool."
At the beginning of your end step, if you control five or more artifacts, transform Storm the Vault.

Devoid (This card has no color.)Choose one or both —• Return target spell or creature to its owner's hand.• Brutal Expulsion deals 2 damage to target creature or planeswalker. If that permanent would be put into a graveyard this turn, exile it instead.

Haste (This creature can attack and {T} as soon as it comes under your control.)When Reclusive Artificer enters the battlefield, you may have it deal damage to target creature equal to the number of artifacts you control.